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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Trade accounts receivable, less allowance for doubtful accounts	$ 18,295,892	$ 17,815,075
Other receivables, less allowance for doubtful accounts	$ 7,187	$ 34,884
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued
Preferred stock, shares outstanding
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	95,000,000	95,000,000
Common stock, shares issued	43,579,557	43,579,557
Common stock, shares outstanding	43,579,557	43,579,557

X

- Definition

A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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